Is there such a thing as a just war? Is terrorism ever morally acceptable? And can ancient art change the current view of history? This program examines these and other questions with political philosopher Michael Walzer, who examines the origins of modern terrorism; classicist Glen Bowersock, whose study of ancient mosaics is helping him deepen his understanding of great conquests from antiquity; and Oleg Grabar, a historian of Islamic art, who discusses the religious and political volatility of the Dome of the Rock. In addition, art historian Kirk Varnedoe talks about Jackson Pollock and what exactly makes modern art so modern.

In this compelling series filmed at Princeton's renowned Institute of Advanced Study, National Public Radio's Ira Flatow introduces viewers to some of today's greatest minds through intimate, cross-disciplinary conversations that spotlight science, mathematics, history, linguistics, art, and music. Each program probes the frontiers of knowledge as Institute faculty members and visiting scholars share their theories, insights, and passions.